The Sony STR-6065 Bluetooth path is its AUX input (140 mV line level), with a tape monitor loop behind it. The 50 W/ch output section is honest for its class and takes any adapter with RCA output; LDAC or aptX HD keeps the source clean. This model has no pre out/main in, so the panel inputs are the whole story.
Spec snapshot
| Item | Value | Notes | Source |
|---|---|---|---|
| Production run | 1971–1974 | Upper model of the 1971 Sony line | HW, RM |
| Power output | 50 W/ch @ 8 Ω | 20 Hz–20 kHz, both channels operating; THD 0.2% | SM, HW, RM |
| AUX inputs | 2 × 140 mV / 100 kΩ | Manual marks AUX 1 for permanent use, AUX 2 for temporary hookups | OM |
| Tape loop | 1 × monitor | RCA and DIN connections to one monitor circuit, no dubbing | OM, SM |
| Phono inputs | 2 × 1.8 mV / 47 kΩ | MM with RIAA, do not use for line-level | HW |
| Pre / Main | None | No pre out/main in on this model | HW |
| Weight | ≈ 13.5 kg | Silver face, optional wood case | HW |
Source codes: HW hifi-wiki.com · OM Sony STR-6065 owner''s manual · RA RadioAttic · RM radiomuseum.org · SM Sony STR-6065 service manual. Data as of September 2026.
Where to connect
AUX input
RecommendedLine level at 140 mV, slightly below the 150 mV common on later receivers but well within range for any Bluetooth receiver with RCA output. The manual marks AUX 1 for permanent installations, with AUX 2 free for temporary hookups.
Tape monitor loop
Good alternativeOne monitor circuit with RCA and DIN connections to the same path. Feed the tape jacks, press MONITOR to listen, and switch it back to SOURCE for the tuner and phono.
Phono inputs
Not for line-levelThe two MM stages carry RIAA equalization and high gain for cartridges. A line-level Bluetooth feed distorts here, and the turntable would lose its input.
Set up in three steps
- Choose AUX
With no pre/main loop on this model, AUX is the cleanest permanent home for a Bluetooth receiver.
- Wire the receiver
RCA out from the Bluetooth unit into AUX, USB power attached, pair once.
- Set levels
Volume low, select AUX, then bring it up. Fixed/line output on the adapter if available.
Quirks and notes
- 140 mV inputs (verified): AUX and the tape-loop inputs sit at 140 mV rather than the 150 mV common a few years later. Still standard line level; no adapter change needed.
- No pre out/main in (verified): the specification lists no separable loop, so panel inputs are the only entries. This matches the simpler layout of early-1970s Sonys.
- Switch contact oxidation (commonly reported): crackle on old selectors shows up at this age across all brands; cleaning treatment is standard restoration practice. Unverified
What you need
- Bluetooth receiver with RCA output, LDAC or aptX HD preferred
- 0.5–1 m RCA cable
- USB power for the receiver
FAQ
Connect a Bluetooth receiver with RCA output to the AUX input and select AUX. The tape monitor loop serves the same purpose if AUX is already used by another source.
The STR-6065 is rated at 50 watts per channel into 8 ohms across 20 Hz to 20 kHz with both channels operating, at 0.2 percent distortion. Enough headroom for efficient speakers in a home room.
No. The AUX and tape inputs are standard line level at 140 mV, so a Bluetooth receiver with RCA output plugs straight in. The receiver keeps its phono stage free for the turntable.
It was part of Sony's 1971 receiver line, alongside the STR-6045, the STR-6055 and the STR-6200. The 50 W/ch output made it one of the stronger receivers in that family.
blafili R1 Bluetooth Receiver
Clean RCA output for the AUX input, no app required. The simple partner for an honest 50-watt Sony.
Spotted something off, or own this receiver and want to share a photo? Write to yourfriends@blafili.com. Photos are published under CC BY-SA 4.0 with full credit to you; corrections are verified and applied with thanks.
Share a photo or correction- Specifications and input configuration: hifi-wiki.com Sony STR-6065 page, cross-checked against the Sony STR-6065 owner's manual and service manual
- Power rating and production period: radiomuseum.org Sony STR-6065 entry and RadioAttic listing
- Position in the 1971 Sony line: hifi-wiki.com and collector references